Law enforcement sources say that members of the production crew on Keeping Up With the Kardashians are being intensely questioned about the $250,000 in jewelry and $50,000 in cash that went missing recently from the respective homes of Khloe and Kourtney Kardashian. The show's employees are considered prime suspects because whoever stole those items knew exactly where they were located. In the case of Khloe's stolen jewelry, it's also presumed that the thieves knew exactly how much the items were worth, since they left behind less expensive pieces of jewelry. In addition, no signs of forced entry were found in either home.